BTCL or Smile?

which internet connection should I opt for? I've talked to both btcl and smile reps, btcl charges 2000 bdt for 1mbps and smile charges 1800 bdt for 1mbps. Setup cost for btcl is 4900 (including a router-2000, zte modem 2500 and cable - 500) and the setup cost for smile is 1500 (just the setup cost no modem). So it is apparent that smile costs less. But what are the other pros and cons of these two isps? Like do the speed vary , connection problem, gaming ? Please note that i'm going for a wifi connection and live in Dhaka Cantt.. So isp pros please help !!